Water-pumping engine.



PATENTED OCT. 27,1903.

A. W. CASE.

WATER PUMPING ENGINE.

APPLICATION FILED FEB. 19 1903.

2 SHEETS-SHEET 1.

N0 MODEL.

m: mums mans co mom-urns" mskmcron. n. c.

APPLICATION FILED FEB. 19, 1903.

2 SHEETS-SHEET 2.

N0 MODEL.

m: Mourns PETERS ca, wu'murna. WASHINGTON. n. c.

UNTTED STATES Patented October 27, 1903.

"ATENT FFICE.

WATER-PUMPING ENGINE.

SPECIFICATION forming part of Letters Patent No. 742,588, dated October27, 1903.

Application filed February 19. 1903-. Serial No. 144,092; (No model.)

To all whom it may concern:

Beitknown that I, ALFRED WELLs CAS a citizen of the United States,residing at Highland Park, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inWater-Pumping Engines, of which the following is a specification.

This invention relates to a pn mping-engine constructed to utilize afall of water for raising a part of the same or other water to a greaterheight.

The object of the invention is to provide a simple, durable, andpowerful selfacting pumping-engine of this nature which is particularlyadapted for raising to a considerable height spring-water having somefall by brook-water having a greater fall than the spring-water.

The embodiment of the invention illustrated has two connected cylinderswith two oppositely-working plungers of large diameter and twoindependent cylinders with plungers of smaller diameter, the largercylinders having valves operated by the movements of the plungers foradmitting and exhausting the brook-water and the smaller cylindershaving self-operating valves which allow the inflow and discharge ofspring-water.

Figure 1 of the accompanying drawings shows a vertical central sectionof a pumping-engine that embodies the invention. Fig.'

2 shows a plan of the same. Fig. 3 shows a vertical longitudinalsection, on larger scale, taken on the plane indicated by the dottedline 3 3 of Fig. 4. Fig. 1 shows a vertical transverse section taken onthe plane indicated by the dotted line 4 4 of Fig. 3. Fig. 5 shows avertical transverse section taken on the plane indicated by the dottedline 5 5 of Fig. 1.

The two large cylinders 6 are cast integral. In the interior near theouter end of each large cylinder is a flange 7, outside of which is apacking 8,'that is held in place bya gland 9. Movable in and out of eachlarge cylinder is a plunger 10. Each of the two small independentcylinders 11, that are located opposite the outer ends of the largecylinders, has an interior flange 13, outside of which is a packing 14,that is held in place by a gland 15. Movable in and out of each smallcylinder is a plunger 16, each small plunger being attached to a largeplunger. The areas of the respective cylinders and plungers areproportional to the relative amount of pressure developed from the fallof the brook-waterand the pressure required to raise the spring-water tothe desired height. On top of each large cylinder is anadmission-chamber 17, containing an admission-valve 18, and anexhaustchamber 19, containing an exhaust-valve 20. Brook-water isconducted to the admissionchambers by the inlet-pipes 21' and escapesfrom the exhaust-chambers by the outlet-pipes 22. Each admission andexhaust valve thatis shown is suitably guided and has a spindle 23 witha collar 2%. A shaft 25 extends transversely through the inner sidewalls of the opposite admission and exhaust chambers and hasateach endan arm 26,that projects beneath a collar on a valve-spindle. Theoscillations of the shafts causethese arms to lift and open theadmission and exhaust valves and drop and allow the admission andexhaust valves to close alternately. On each shaft between thevalvechamloers is a pair of rocker-arms 27, and on a bar 28, that isconnected with a post 29, attached to the outer end of a large plunger,is a lug 30, adapted to engage the arms on one shaft, and on a bar 31,that is connected with a post 32, attached to the other large plunger,is a lug 33, adapted to engage the arms onthe other shaft. Theconnections are so made that the admission and exhaust valves of onelarge cylinder are opened and allowed to close by the movements of theplunger in the opposite large cylinder-r-that is, the movements of oneplunger effect the reversal of the valves of the cylinder containing theother plunger-and the operations are so timed that the admission andexhaust valves are opened and closed alternately with each other andoppositely with those of the other cylinder, the closing alwaysoccurring a little in advance of the opening. The valve mechanism shownis arranged in such manner that the outward movement of one plungereffects the closing of the admission-valve and opening of theexhaust-valve of the cylinder containing the other plunger, and theinward movement of the former plunger opens the latter plunger, whilethe same-movements of the latter plunger eltect the actuation of thevalves of the cylinder containing the former plunger reversely.

Opening into the inlet-chamber 34 on top of each forcing-cylinder is aninlet-pipe 35, leading from the spring or reservoir containing the waterwhich is to be lifted. An inlet-valve 36 is provided for each of thesechambers, and a discharge-valve 37 is provided for each outlet-chamber38, from which the pipes 39 lead to the level to which the water is tobe raised.

This engine is particularly adapted for raising spring-water by means ofbrook-water, although of course it can be used for raising the samewater that is used to operate the engine. Brook-Water under considerablehead is admitted into and exhausted from the large cylindersalternately, so as to force outwardly one plunger and then the otherplunger. The head of the spring-water or other water to be lifted forcesthe plungers back to their initial positions, when at the end of eachoutward stroke a plunger is relieved of the pressure on its large end bythe reversal of its valves due to the action of the opposite plunger andis only subject to the pressure of the Water on the smaller end.

I claim as my invention 1. A pumping-engine having a pair ofoppositely-facing cylinders, a head separating the cylinders, a flange,packing and gland at the outer end of each cylinder, a plunger extendingthrough the flange, packing and gland of each cylinder, a smallercylinder opposite each large cylinder, a flange, packing and gland atthe outer end of each small cylinder, a small plunger extending throughthe flange, packing and gland of each small cylinder and connected witha large plunger, an admission and an exhaust valve for each largecylinder, mechanism for actuating the admission and exhaust valvesalternately and oppositely, and inlet and discharge valves foreach smallcylinder, substantially as specified.

2. A pumping-engine having a pair of oppositely-facing cylinders, a headseparating the cylinders, a flange, packing and gland at the outer endof each cylinder, a plunger extending through the flange, packing andgland of each cylinder, a smaller cylinder opposite each large cylinder,a flange, packing and gland at the outer end of each small cylinder, asmall plunger extending through the flange, packing and gland of eachsmall cylinder and connected with a large plunger, an admission and anexhaust valve for each large cylinder, mechanism for raising andlowering the admission and exhaust valves alternately and oppositely,and inlet and discharge valves for each small cylinder, substantially asspecifled.

3. A pumping-engine having a pair of oppositely-facing cylinders, a headseparating the cylinders, a flange, packing and gland at the outer endof each cylinder, a plunger extending through theflange, packing andgland of each cylinder, a smaller cylinder opposite each large cylinder,a flange, packing and gland at the outer end of each small cylinder, asmall plunger extending through the flange, packing and gland of eachsmall cylinder and connected with a large plunger, an admission and anexhaust valve for each large cylinder, mechanism for actuating theadmission and exhaust valves alternately and oppositely, and connectionsbetween the actuating mechanism of the valves of each large cylinder andthe plunger ot' the opposite large cylinder, and inlet and dischargevalves for each small cylinder, substantially as specified.

4. A pumping-engine having a pair of oppositely-facing cylinders, a headseparating the cylinders, a flange, packing and gland at the outer endof each cylinder, a plunger extendingthrough the flange, packingandgland of each cylinder, a smaller cylinder opposite each large cylinder,a flange, packing and gland at the outer end of each small cylinder, asmall plunger extending through the flange, packing and gland of eachsmall cylinder and connected with a large plunger, an admission and anexhaust valve for each large cylinder, connections between the admissionand exhaust valve of each large cylinder and a plunger of the oppositecylinder, and inlet and discharge valves for each independent cylinder,substantially as specified.

ALFRED WELLS CASE.

\Vitnesses:

ETHEL M. LOWE, H. R. WILLIAMS.

